| Index | Lamar | Missouri | National |
| Income per capita | $28,663 | $39,715 | $44,883 |
| Median household income | $47,679 | $72,613 | $81,333 |
| Median income owner occupied | $73,660 | $90,986 | $106,172 |
| Median income renter occupied | $29,812 | $45,210 | $52,080 |
| Median earnings male | $39,887 | $52,324 | $54,343 |
| Median earnings female | $31,718 | $36,971 | $38,439 |
| Unemployment rate | 6.9% | 4.4% | 4.9% |
| Poverty level | 33.2% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 11.5% | 11.5% |
| Manufacturing sector | 36.0% | 36.0% |
| Financial & insurance services | 2.0% | 2.0% |
| Wholesale & retail services | 14.7% | 14.7% |
| Public administration | 3.7% | 3.7% |
| Transportation, warehousing & utilities | 4.7% | 4.7% |
| Education, health & social services | 8.0% | 8.0% |
| Other | 19.4% | 19.4% |
| City | Population | Household Income | National Avg. |
| Jasper, MO | 980 | $70,097 | 13.8% |
| Golden City, MO | 652 | $60,412 | 25.7% |
| Liberal, MO | 691 | $57,103 | 29.8% |
| Sheldon, MO | 420 | $50,643 | 37.7% |
| Lamar Heights, MO | 154 | $47,882 | 41.1% |
| Lamar, MO | 4,393 | $47,679 | 41.4% |
| City | Population | Household Income | National Avg. |
| Argyle, TX | 4,393 | $286,890 | 252.7% |
| Mather, CA | 4,392 | $146,908 | 80.6% |
| Lyons, GA | 4,392 | $38,358 | 52.8% |
| West Wendover, NV | 4,392 | $84,833 | 4.3% |
| Plymouth, NH | 4,395 | $75,611 | 7.0% |
| Lamar, MO | 4,393 | $47,679 | 41.4% |